$110 Off
$110 Off
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#447D313SS
Doug's Headers D313-SS 64-77 BBC 1 3/4" 304 SS Long Tube Headers
- Natural stainless-steel finish offers superior resistance to rust and corrosion
- 3/8" thick 304 stainless machine flanges to prevent warping
- CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
$1,097.00
/each
Factory Shipped
$1,206.70
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Product Summary
Long Tube Header Tube Type, Round Exhaust Port Shape
- Natural stainless-steel finish offers superior resistance to rust and corrosion
- 3/8" thick 304 stainless machine flanges to prevent warping
- CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
- Precision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower
Key Specs
| MFG. Part # | D313-SS |
| Header Tube Type | Long Tube |
| Exhaust Port Shape | Round |
| Flange Style | Standard |
| Primary Tube Diameter | 1-3/4" |
Need To Know
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Dougs Headers D313-SS Details
Doug's Headers D313-SS long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.
For the enthusiast who demands the best, Doug's Headers are not just components; they're a statement of excellence, a commitment to leading-edge performance, and a nod to the glory days of muscle cars and drag racing. Join the ranks of champions. Experience the unmatched quality and performance of Doug's Headers today.
- Natural stainless-steel finish offers superior resistance to rust and corrosion
- 3/8" thick 304 stainless machine flanges to prevent warping
- CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
- Precision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower
Application
Designed to fit 396-502 GM A & F Body, Chevy Big Block Applications.
Specs
- Finish: 304 Stainless Steel
- Material: 304 Stainless Steel
- Design: Full-length
- Primary Tubing Diameter: 1.75 Inches
- Collector Port Diameter: 3.0 Inches
- Port Shape: Round
- Tube Wall Thickness: 16 Gauge
- Flange Thickness: 0.375 Inches
- Collector Attachment: 3-Bolt Flange
- Oxygen Sensor Port: No
- Gasket Or Seal Included: Yes
- Mounting Hardware Included: Yes
- Grade Type: Performance
- Color: Silver
- Sheen Level: Satin
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
Dougs Headers D313-SS Specifications
Dougs Headers D313-SS Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | D313-SS |
| Brand | Dougs Headers |
| Header Tube Type | Long Tube |
| Exhaust Port Shape | Round |
| Flange Style | Standard |
| Primary Tube Diameter | 1-3/4" |
| Material Type | 304 Stainless Steel |
| Color | Natural |
| Weld-Up | No |
| Finish | Stainless |
| Hardware Included | Yes |
| Gasket(s) Included | Yes |
| Collector Reducers Included | Yes |
| Collector Reducer Exit Diameter | 2.5" |
| GENERAL | |
| Sold in Quantity | Each |
| GTIN Code | 694342557065 |